34 results about "Caster angle" patented technology

A multi-vehicle control system (MVCS) for control of a multi-vehicle system having independently powered and steered lead and trailer vehicles connected by a slidable length sensing tow bar system. The MVCS includes a controller configured to receive throttle, brake, and steering signals from the lead vehicle, receive signals from the tow bar system indicating an extension length of the tow bar system, a front angle deviation of the lead vehicle, and a rear angle deviation of the trailer vehicle. The controller is further configured to determine, based on the received signals, a trailer vehicle acceleration / deceleration output and a trailer vehicle steering output, determine a driving scenario of the multi-vehicle system, and operate the multi-vehicle system based on the determined driving scenario and the determined trailer vehicle acceleration / deceleration output and trailer vehicle steering output.

The invention discloses a high-integration driving unit with an active variable geometric positioning parameter function. The high-integration driving unit is mainly composed of a wheel assembly, a suspension system, a first actuator and a second actuator. The actuator is arranged on the upper control arm, so that the mechanical load borne by the actuating mechanism during working is effectively reduced. The interior of the actuator is driven by a self-locking mechanism, continuous energy consumption is not needed when positioning parameters are maintained, and the steady-state power consumption of the system is remarkably reduced. In the aspect of mechanism connection, through combined arrangement of kinematic pairs, accurate matching of the degree of freedom of movement of the mechanism is achieved, the problems of interference and movement uncertainty in the adjusting process are effectively solved, and the accuracy of action execution is ensured. The unit integrates the functions of steering, active variable camber, active variable kingpin caster angle and fault tolerance. Dynamic real-time adjustment of geometric parameters is achieved through the compact structural layout, the vehicle control limit and stability are improved, and meanwhile the space utilization rate and work reliability are extremely high.

The invention provides a posture adjusting method, system and equipment for a cold regenerator and a medium, and belongs to the technical field of cold regenerator control, the method comprises the following steps: descending four supporting legs of the cold regenerator before construction, enabling the whole machine to be horizontal, enabling a milling hub to be flush with the ground, and recording the heights of the four supporting legs as zero point heights; lowering the milling hub to a target cutting depth, and collecting initial values of a left-right inclination angle, a front-back inclination angle, four support leg oil cylinder pressures and an engine load rate corresponding to the zero point height; in the construction process, the real-time values of the left-right inclination angle, the front-back inclination angle, the pressure of the four supporting leg oil cylinders and the engine load rate are collected in real time; the change of the real-time value relative to the initial value is compared, the state of the corresponding supporting leg is judged to be pressed to the obstacle or the pit, the corresponding supporting leg ascends or descends till the collected real-time value recovers to the initial value, and automatic adjustment of the posture of the cold regenerator is completed. The machine body can be automatically kept horizontal, it is guaranteed that the cutting depth is stable, and construction precision and efficiency are improved.

The invention discloses a double-airbag damping base, a method and a passenger car seat, and relates to the technical field of vehicle damping, the double-airbag damping base comprises a base body, a first airbag and a second airbag are arranged in the base body in parallel, and an air path control unit is connected between the first airbag and the second airbag; the air path control unit comprises an air source and an electromagnetic valve set. The electromagnetic valve set comprises a first inflation electromagnetic valve and a first deflation electromagnetic valve which are connected with the first air bag, and a second inflation electromagnetic valve and a second deflation electromagnetic valve which are connected with the second air bag. The first inflation electromagnetic valve and the second inflation electromagnetic valve are connected to the output end of the air source in parallel. The electromagnetic valve set is connected with the controller which is used for adjusting the state of the electromagnetic valve set according to the control instruction and adjusting the inclination angle of the damping base. Inflation and deflation of the two air bags are controlled independently or in a linkage mode through the air path control unit, the supporting height of the air bags is changed, stepless and smooth adjustment of the front inclination angle or the rear inclination angle of the base is achieved, and fatigue caused by long-time driving can be effectively relieved.

Provided is a vehicle passenger seat airbag device and a vehicle passenger seat airbag control method. The vehicle passenger seat airbag device includes an airbag that is housed in an instrument panel of a vehicle and that is inflated and deployed toward an occupant seated on a passenger seat by supplying gas from an inflator. When a front collision of the vehicle is predicted or detected in a state in which a reclining angle of a seat back of the passenger seat is set to be equal to or greater than a predetermined angle, a position of a deployment surface of the airbag that comes into contact with the head of the occupant is changed to a second position that is located further to the rear of the vehicle than a first position when the reclining angle of the seat back is less than the predetermined angle.

The present application relates to a vehicle control system. A control device is configured to execute, when a steering request is received in a parking state or a creep state in which a vehicle speed does not exceed a predetermined vehicle speed from the parking state, a caster change control of controlling a driving force application device or a driving force application device and a braking force application device in such a manner that a caster of the steering wheel is reduced, the control device applying, in the caster change control, a driving force in a direction toward the other wheel to one of front and rear wheels and applying a braking force or a driving force in a direction toward the one wheel to the other wheel so as to become the parking state or the creep state in response to a request related to acceleration or deceleration.

This disclosure provides a vehicle and a control method, a control device and a storage medium, the method comprising the steps of: obtaining the wheel speed difference at the current vehicle speed when it is determined that the vehicle's steer-by-wire system has failed; obtaining a positive scrub radius value; determining a target steering angle for the wheels using the wheel speed difference and the positive scrub radius value; and controlling the wheels using the target steering angle. The method of this disclosure enables steering control of the vehicle using the wheel speed difference and positive scrub radius when the steer-by-wire system fails, and does not require the addition of other components, thereby providing an external backup system after steer-by-wire failure, improving vehicle safety and reducing costs.

Disclosed is a vehicle tuning and calibration system and associated methods for diagnosing and correcting issues involving vehicle performance, driving characteristics, and / or driver assist features. The system includes multiple sensor packages with connectors for mounting a different sensor package to a different wheel of a vehicle. Each sensor package includes sensors that generate measurements for a positioning and movements of the wheel onto which that sensor package is mounted. The system also includes a controller that receives the measurements generated by the sensor packages mounted to the different wheels of the vehicle. The controller generates a user interface with visual representations that are derived from the measurements. The visual representations may identify toe, camber, caster, and other alignment issues detected for different wheels, adjustments to correct the detected issues, and positions and orientations at which to place targets relative to the vehicle for vehicle sensor calibration.

A vehicle control system according to various embodiments can include a control unit that receives data from a plurality of sensors which monitors an electronic limited slip differential mounted to a vehicle and detects road conditions. A prediction module executed by a processor predicts, based on electronic limited slip differential data and road condition data received by the control unit, a wheel alignment adjustment for the road conditions that the vehicle approaches and encounters along a road and generates a control signal based on the predicted wheel alignment adjustment. A wheel alignment adjustment mechanism, connected to a wheel mounted to the vehicle, automatically adjusts the wheel alignment for the wheel in response to the control signal such that at least one of a camber angle, a toe angle, and a caster angle for the wheel is adjusted as the vehicle travels across varying road conditions.

Modular track widening device for off-road vehicles with rigid axle (1), characterized in that it consists of two coaxially screwable spacer discs - an inner spacer disc (2) and an outer spacer disc (3) - per side of the vehicle, wherein the spacer discs are mounted further inwards on the axle and an angular offset between the discs is provided by the bore arrangement for caster correction in raised vehicles, and the device is designed in such a way that the original steering roll radius is maintained.

The invention discloses a large-span suspended pouring beam prestress tensioning construction device which comprises suspended pouring beam sections and a hanging basket assembly. The hanging basket assembly is composed of a quadrilateral frame, a track structure, a bottom beam structure, a middle beam structure, a middle portal, a front upper cross beam, a sling structure, an anchoring rib structure and a molding structure. The quadrilateral frame adopts a parallelogram frame design, and stable movement of the hanging basket can be achieved in cooperation with a rail structure. And by arranging the anchor bar stress adjusting structure and the sling stress adjusting structure, the construction linear control precision and the structural rigidity are effectively improved. A stress interference wheel structure integrated in the system can actively limit the front-back inclination angle in the hanging basket forward moving and anchor disengaging process, and the hanging basket is prevented from deviating and losing stability. Molding structures such as the inner mold and the side mold are flexibly connected through guide beams and roller hanging brackets, and rapid hoisting and dismounting are facilitated. And pre-pressing loading and real-time monitoring measures further ensure the construction quality and safety of the beam body.

The utility model discloses an ergonomic bicycle saddle adjusting mechanism, and relates to the technical field of bicycle saddles, the ergonomic bicycle saddle adjusting mechanism comprises a saddle body and a supporting rod, a fixing frame is fixedly installed at the bottom of the saddle body, and an angle adjusting assembly and a distance adjusting assembly are arranged between the fixing frame and the supporting rod. The angle adjusting assembly comprises a supporting sliding block, an elastic supporting plate, a connector, a threaded sleeve and a supporting threaded rod. According to the technical scheme provided by the utility model, the angle adjusting assembly is arranged, specifically, the screw sleeve is rotated to be meshed with the supporting screw rod during use, and the supporting length of the supporting screw rod and the screw sleeve can be adjusted, so that the front-back inclination angle of the cushion body can be directly adjusted, and the angle of the seat body can be conveniently adjusted.

The present application relates to a vehicle seat and a method for controlling the vehicle seat, the vehicle seat comprising: a seat cushion on which an occupant is seated; a seat back which is configured so as to be capable of tilting backwards and which supports the back of the occupant; a lifting mechanism which is provided in the seat cushion and which lifts the front part of the seat surface of the seat cushion; and a pressing mechanism that is provided in the seatback, presses a portion of the front surface of the seatback toward the front side of the seat, and operates the pressing mechanism after operating the raising mechanism when the reclining angle of the seatback is equal to or greater than a predetermined angle and a frontal collision of the vehicle is predicted.

The utility model relates to the field of automobile detection technology discloses a four -wheel alignment detection device of car, including bottom plate, still include: the slider that sets up in the top of bottom plate, the top of bottom plate is provided with the pressing plate, the outside of slider is connected with the support block of sliding, set up in the support block top for the support mechanism of four -wheel alignment of car, the utility model discloses through setting positioning mechanism can be convenient for four -wheel alignment in the detection positioning, four -wheel alignment detection device can accurately measure the various parameters of wheel, such as the caster angle and the inner inclination angle of front wheel kingpin and the camber angle of rear wheel, ensure that tire positioning is accurate, through setting support mechanism can be convenient for supporting when tire travels, and can limit the rear wheel, can disperse the pressure of tire and suspension system, avoid damaging due to excessive stress in the detection process, and can fix the position of rear wheel, prevent the rear wheel from deviating or moving in the detection process.

1. The name of the design product: camber angle detector. 2. The use of the design product: used in car repair shop, 4S shop and tire shop, which is matched with magnetic flat water instrument to measure four-wheel positioning (including toe, camber, kingpin caster angle, etc.) equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of commercial vehicle testing devices, and discloses a commercial vehicle door closing performance testing rack and a testing method, and the rack comprises a supporting device, an adjustable sound cabin testing device, a cab simulation testing device, and a vehicle door testing device. The adjustable sound cabin testing device is arranged on the right side of the upper end of the supporting device, the cab simulation testing device is fixedly embedded in the left side of the adjustable sound cabin testing device, and the lower end of the cab simulation testing device is fixed to the upper end face of the supporting device. The internal space of the cab simulation test device is communicated with the internal space of the box body structure of the adjustable sound cabin test device; the vehicle door testing device comprises a vehicle door and a vehicle door hinge supporting device, the vehicle door is fixed at a door frame position corresponding to the cab simulation testing device in an openable and closable sealing manner, the vehicle door hinge supporting device is fixed on the upper end surface of the supporting device, and the vehicle door hinge supporting device is hinged to the vehicle door; according to the invention, a plurality of core index tests such as vehicle door front and back inclination angles and vehicle door inner and outer inclination angles can be realized.

To reduce air resistance when a vehicle travels, while securing the appearance design of a rear part of a vehicle body.SOLUTION: A vehicle-body rear part structure includes: a lid body 4 forming a part of a vehicle-body rear surface portion 2; a rear pillar 6 extending in a vertical direction along right and left ends-side portions of the lid body 4 and forming a part of a vehicle-body side surface portion 3 of a vehicle-body rear part; and a duct 10 having a duct inlet portion 11 configured to take in a traveling air flowing along an external surface of the vehicle-body side surface portion 3 in front of the rear pillar 6, and a duct outlet portion 12 configured to discharge the traveling air, which has passed through an inner part of the rear pillar 6, from the vehicle-body rear surface portion 2 on each of right and left sides thereof. The vehicle-body side surface portion 3 is provided with a side spoiler portion 30 protruding rearward from a vehicle-width outer part of the duct outlet portion 12 over a vertical width of the duct outlet portion 12. An external surface of the side spoiler portion 30 is provided so as to be smoothly continuous rearward from a rear end of the external surface of the vehicle-body side surface portion 3 and is formed at a rear narrowing angle larger than a rear narrowing angle in a horizontal cross section of the external surface of the vehicle-body side surface portion 3.SELECTED DRAWING: Figure 3

The utility model relates to the technical field of electric vehicle suspension, in particular to an electric vehicle front suspension structure which comprises a lower frame body, a middle frame body fixed to the top of the lower frame body, an upper frame body fixed to the top of the middle frame body, a steering gear box arranged on the lower frame body, pull rods in transmission connection with the two sides of the steering gear box, and a ball head at one end of each pull rod is connected with a claw. The connecting arm is arranged above the steel plate spring; a connecting arm ball head is connected with a balance rod; the other end of the balance rod is connected with an upper frame body ball head; a cleat bottom ball head is connected with a triangular arm, the triangular arm is hinged to the lower frame body, a damper is hinged to the top of the triangular arm, and the damper is hinged to the upper frame body; the steel plate spring, the triangular arm, the balance rod and the cleat restrain the wheel, so that the caster angle of a main pin of the wheel is 3 + / -0.5 degrees, the camber angle of the main pin is 1 + / -0.5 degrees, a left pull rod and a right pull rod of a steering gear are adjusted to ensure that the toe-in is 3-5mm, the driving performance and the stability of an automobile are improved, the front wheel is automatically returned after turning, side inclination is prevented, and tire abrasion deviation is reduced.

The invention provides an occupant protection system and a vehicle, which are beneficial for protecting the lumbar vertebra and the like of an occupant. An occupant protection system (1) is provided with: a collision detection sensor (40); a seat state detection sensor (41) for detecting the reclining angle of the seat back; an upper body protection device (20); a lower body protection device (30); the control unit has: a vehicle state detection unit (52) that detects the state of the vehicle; a seat state determination unit (53) that determines the state of the vehicle seat; and an operation order determination unit (55) that determines the operation order of the upper body protection device and the lower body protection device on the basis of the states of the vehicle and the vehicle seat. And a protection device operation unit (56) that operates the upper body protection device and the lower body protection device on the basis of the operation order. When a collision of the vehicle is detected and the seat back is inclined beyond a predetermined angle, the operation order determination unit determines to operate the upper body protection device prior to the lower body protection device, and the protection device operation unit operates the upper body protection device and then operates the lower body protection device.

The utility model relates to the related technical field of vehicle four-wheel positioning, and discloses a vehicle four-wheel positioning device which comprises one or more detectors, each detector comprises an instrument shell, a circuit board is arranged in each instrument shell, and the circuit board is connected with the instrument shell. The circuit board is provided with an MCU micro-control unit, a micro-electro-mechanical triaxial accelerometer, a triaxial micro-electro-mechanical gyro sensor and a wireless transmission module, and the micro-electro-mechanical triaxial accelerometer, the triaxial micro-electro-mechanical gyro sensor and the wireless transmission module are all connected with the MCU micro-control unit; according to the utility model, a handheld small instrument is combined with a micro-electro-mechanical three-axis accelerometer and a three-axis micro-electro-mechanical gyro sensor to calculate all angles of wheels of a vehicle, wherein the angles comprise a kingpin caster angle, a kingpin inclination angle, a front wheel camber angle and a front wheel toe-in angle. A user can carry out four-wheel positioning in a garage of himself or herself or rapidly inspect a parking lot, and due to the fact that a fixed place and large-scale measuring equipment are not needed, large-scale wheels can also be rapidly subjected to four-wheel positioning measurement outdoors.

A connection assembly includes: a first connector coupled to an axle tube of a vehicle, a second connector coupled to a wheel of the vehicle, and at least one eccentric structure coupled between the first connector and the second connector and configured to adjust a caster angle associated with the wheel. The invention also discloses an axle assembly, a chassis, a vehicle and a method.

A vehicle suspension can include a telescopic tube including a fork part and a tube part, where the fork part is configured to support a front wheel while forming a caster angle, where tube part is configured to slide linearly along a longitudinal direction of the fork part, a lower arm configured to support the fork part of the telescopic tube in a vertically movable state relative to a vehicle body, an upper arm configured to support the tube part of the telescopic tube to be rotatable relative to the vehicle body with at least two degrees of freedom, and a steering handle connected to the tube part of the telescopic tube. The vehicle suspension can optionally include a vehicle height adjustment device.

The utility model discloses a front and rear inclination angle adjusting device of forklift low portal, including drive adjusting assembly, low portal assembly and bottom supporting adjusting assembly, drive adjusting assembly sets up in the left side of low portal assembly, bottom supporting adjusting assembly all sets up in the both sides of low portal assembly right side, drive adjusting assembly includes drive assembly, adjusting handle, positioning wheel, cylinder, locating block, clamping block and energy storage assembly, bottom supporting adjusting assembly includes first supporting plate block, threaded holder, fixed block, bottom limiting wheel frame, sliding slot, sliding block, clamping groove and accommodating groove. The front and rear inclination angle adjusting device of forklift low portal provided by the utility model has the advantages that convenient adjustment, the front and rear inclination angle of the low portal of the existing technology's stacking vehicle is fixed when using, and the inclination angle of the low portal cannot be adjusted, leading to that goods cannot meet its demand when slightly adjusting, and the lifting range of the low portal also cannot be adjusted according to the length of goods.

The objective is to provide a passenger-side airbag system and a passenger-side airbag control method for a vehicle that can restrain the occupant's head early, even when the vehicle is in a frontal collision while driving with the seatback tilted to a predetermined angle or greater. [Solution] A vehicle passenger-side airbag device 30 and a vehicle passenger-side airbag control method are provided, which include an airbag 32 housed in the instrument panel of the vehicle and which inflates and deploys toward an occupant seated in the passenger seat when gas is supplied from an inflator, wherein when a frontal collision of the vehicle is predicted or detected while the rearward tilt angle of the passenger seat back is set to a predetermined angle or greater, the position of the deployment surface 36 of the airbag 32 that contacts the occupant's head is changed to a second position that is further rearward than the first position when the rearward tilt angle of the seat back is less than the predetermined angle.

The invention relates to a vehicle deviation adjustment method based on a road cross slope, and belongs to the technical field of automobiles, and the method comprises the following steps: on a target road with a preset cross slope, controlling a vehicle to run along a straight line, and when the vehicle speed reaches a target speed, enabling a steering system of the vehicle to be in a free state so as to enable the vehicle to run freely; starting from the moment when a steering system of the vehicle is in a free state, recording the actual measurement duration of the vehicle when the vehicle transversely deviates by a preset distance; comparing the actually measured time length with a preset threshold value; and if the actual measurement duration is smaller than a preset threshold value, increasing the kingpin caster angle of a wheel, located on the low side of the road, in the front axle of the vehicle, and repeating the steps till the actual measurement duration is larger than or equal to the preset threshold value. According to the method, the vehicle adjusting efficiency can be improved, the linear stability of the vehicle is remarkably enhanced when the vehicle runs on a domestic road with a typical cross slope, the deviation phenomenon is effectively restrained, and the driving comfort and the driving safety are improved.

Provided is a suspension device for a vehicle that gives a driver a good feeling of operating the vehicle by producing a smooth change in vehicle posture with respect to a steering force and an actual steering angle by suppressing roll on a steering side at the initial stage of cornering to a minimum. A front suspension (2) of a suspension device (1) for a vehicle according to the present invention has the following geometry: a caster angle (τ) of +3° to +5°, a trail (T) of +20 mm to +30 mm, a ground contact center (GC) of a tire located inward in a vehicle width direction from an intersection (GK) of a kingpin axis (K) and a ground (G), a lower camber angle (α) of a lower arm (10) of +2.8° to +7.2°, and a rear suspension (3) has the following geometry: provided with five links (50, 52, 54, 56, 58), and an imaginary kingpin axis (IK) extends near a ground contact center (GC) of a rear wheel (46) and extends vertically at -2° to 0°.

The application provides a full active suspension test adjustment platform, which comprises an adjustable front suspension module, a weight-adjustable vehicle body platform module and an adjustable rear suspension module, the front and rear ends of the vehicle body platform module are respectively installed on the front suspension module and the rear suspension module, the top of a front suspension damper in the front suspension module and the top of a rear suspension damper in the rear suspension module can be continuously adjusted along the X axis, the Y axis and the Z axis of the vehicle body platform module, the caster angle of the front suspension damper is 1-15 degrees, and the camber angle is 5-16 degrees, the caster angle of the rear suspension damper is 0-10 degrees, and the camber angle is 0-14 degrees. The application has the weight-adjustable vehicle body platform, the adjustable front and rear suspensions, can be adapted to mainstream full active suspensions, and enables developers to quickly and accurately verify the configuration of the suspension, the control algorithm and the effect of system integration in the adjustment platform.

Computer-implemented method for determining at least one vehicle skidding condition, comprising: Receiving at least one motion parameter of a vehicle based on signals captured by at least one vehicle sensor; estimating a self-aligning torque and at least one lateral axis force based on at least one motion parameter; estimating the tire caster for at least one tire of the vehicle using the self-aligning torque and the at least one lateral axle force; Determining at least one vehicle skidding condition based on the estimated tire trail; the computer-implemented method further includes the following: a condition of decreasing tire trail is determined and an initial vehicle skidding condition is determined in response to the condition of decreasing tire trail; and / or The estimated tire caster is compared with a predetermined tire caster threshold, and a second vehicle skidding condition is determined based on the comparison.

The invention relates to a device (28) for determining a torque for at least one force feedback actuator (7, 8) in a steer-by-wire steering system (1), wherein the device (28) has at least one evaluation and control unit (26) configured to calculate the torque as a function of a determined rack force (Fz), wherein the evaluation and control unit (26) is configured to determine a total rack force (Fz) as the sum of a left-side rack force Fzl and a right-side rack force Fzr, wherein the left-side rack force is determined by means of a lateral acceleration (ay) and a left-side build-up acceleration (azl) according to Fzl = (rt + azl / an · rp) · ml · ay / rs and the right-side rack force Fzr is determined by means of the lateral acceleration (ay) and a right-side build-up acceleration (azr) according to Fzr = (rt + azr / an · rp) · mr · ay / rs can be determined, where rt is the caster angle of a steered axle,rp is a tire trail, rs is a steering lever length, and ml and mr are a left-side and a right-side mass acting on the tires, as well as an associated method.

The utility model relates to the technical field of trailer hangers, in particular to a torsion half-shaft supporting structure for a trailer, which can effectively solve the problem that the inclination angle of a torsion axle assembly is too large by arranging a supporting half-shaft ring, and prevents the phenomenon that tires are stuck due to the fact that the inclination angle is too large after axle tires are installed. Comprising an axle tube assembly; the axle tube assembly further comprises a torsion half shaft, a round bar and two half shaft supporting rings, the torsion half shaft is installed in the axle tube assembly, the round bar is installed on the torsion half shaft, and the two half shaft supporting rings are arranged on the torsion half shaft in a sleeving mode, support the torsion half shaft and prevent the round bar from axially moving.